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Finding the Fourth Proportional to 463,855.01, 640,509.93 and 348,934.43

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Solution

The fourth proportional to 463,855.01, 640,509.93 and 348,934.43 is: 481,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,855.01 : 640,509.93 = 348,934.43 : x
  2. Step 2: Convert to fraction form
    463,855.01/640,509.93 = 348,934.43/x
  3. Step 3: Cross multiply
    463,855.01x = 640,509.93 × 348,934.43
  4. Step 4: Simplify right side
    463,855.01x = 223,495,968,935.17
  5. Step 5: Solve for x
    x = 223,495,968,935.17/463,855.01
  6. Step 6: Final answer
    x = 481,822.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.